I\'m trying to install a NSTrackingArea into a fullscreen view in order to get mouse moved events. However, whenever I do, I get an assertion error.I\'ve searched the web, but have not been able to f
I have a UIView subclass that has the following in drawRect: for(int j=0; j<[myArray count]; j++){ if([myArray objectAtIndex:j]!=@\"\"){
If I\'m writing drawing code in Core Graphics on Mac OS X or iPhone OS, I can set the active fill color to red by calling:
I have a gradient that has rounded corners that I an using for a custom UITableViewCell background.I am trying to apply a stroke to the path but cannot quite do it, and can\'t see where I am going wro
I made a \"Circle\" view with this drawRect - (void)drawRect:(CGRe开发者_开发知识库ct)rect { CGContextRef ctx = UIGraphicsGetCurrentContext();
the more i read about the different type of views/context/rendering开发者_如何转开发 backends, the more i get confused.
My blog has been mentioned here before as an answer to questions. I can\'t link to one of them, because this form claims I\'m a spammer. Sigh. Anyway, now I want to write the definitive blog post on d
this is my first time posting so please excuse any lapses in stackoverflow etiquette. I haven\'t found any example code or any questions that address the problem I\'m having, so hopefully someone can
I\'m trying to speed up my drawing code. Instead of creating a graphics context, drawing the current image into it, and drawing over it, I\'m trying to create a context using some pixel data, and just
I want to create a bitmap CGContext with the same color space as an existing CGContext. How can I get开发者_C百科 the UIColor space of a CGContext?You need to call CGBitmapContextGetColorSpace to get
加载中,请稍侯......